TY - JOUR
T1 - Chaotic behavior of quantum cascade lasers at ignition
AU - Önder, Denizhan Ekin
AU - Sand Kalaee, Alex Arash
AU - Winge, David
AU - Wacker, Andreas
PY - 2021
Y1 - 2021
N2 - The ignition of Quantum Cascade Lasers can occur from a state of oscillating field domains. Here, the interplay between lasing and the kinetics of traveling domain boundaries provides complex oscillation scenarios. We analyze our numerical findings in detail for a device operating at terahertz frequencies and manifest chaotic evolution by positive Lyapunov exponents. This shows that these important devices can exhibit chaotic behavior even without periodic driving, which needs to be taken into account in their design.
AB - The ignition of Quantum Cascade Lasers can occur from a state of oscillating field domains. Here, the interplay between lasing and the kinetics of traveling domain boundaries provides complex oscillation scenarios. We analyze our numerical findings in detail for a device operating at terahertz frequencies and manifest chaotic evolution by positive Lyapunov exponents. This shows that these important devices can exhibit chaotic behavior even without periodic driving, which needs to be taken into account in their design.
KW - Quantum cascade laser
KW - Chaos
KW - Simulation
KW - Lyapunov exponents
U2 - 10.1016/j.cnsns.2021.105952
DO - 10.1016/j.cnsns.2021.105952
M3 - Article
SN - 1007-5704
VL - 103
JO - Communications in Nonlinear Science and Numerical Simulation
JF - Communications in Nonlinear Science and Numerical Simulation
M1 - 105952
ER -